Abnormal exhaust pipe noise can’t cure Peugeot 307′ s chronic illness.

　　As the saying goes, long-term practice in practical use is the best way to test whether a new car is mature in all aspects. Dongfeng Peugeot 307 sedan is a sedan derived from the prototype hatchback 307, which has been listed in China for more than a year. In the long-term use of many consumers, the domestic Peugeot 307 not only shows its excellent performance in appearance, space and handling, but also exposes some problems.

　　As a family car, the car environment of different consumers is naturally different, and it is inevitable that there will be some minor problems in the car. However, what is pointed out here is the "stubborn disease" that the manufacturer still has not solved after Peugeot 307 went on the market for more than one year-the abnormal noise of the exhaust pipe joint of the 1.6 model (the problem has not been found in the 2.0 model). Many car owners have been troubled by this problem. Although it does not endanger the driving safety, the sound of "squeaking and twisting" has a great "spiritual blow" to the car owners-who wants the car that he spent more than 100,000 yuan to drive will "squeak and twist"?

　　Performance of "stubborn disease":

　　This problem generally appears in the 1.6-displacement car of Dongfeng Peugeot 307. According to relevant network surveys, almost half of the vehicles have this problem. The performance is that after the new car runs about 4000 kilometers (some cars even start to make noises after 1000 kilometers), in the case of "cold car", when the driver performs normal driving operations that can cause the engine to vibrate, such as stepping on the clutch pedal, feeding oil, collecting oil and shifting gears, there is a "squeaking" sound from below the front of the car, and the sound disappears after the car is warmed up. The sound is different according to the severity of the situation. Due to the good sound insulation of Peugeot 307 car body, only a weak sound can be heard after closing the window; However, with the deterioration of the situation, when closing and opening the window, you can hear the obvious and sharp "squeaking" sound (metal rubbing sound, especially in quiet places such as underground garage).

　　Abnormal sound is ubiquitous and easy to diagnose;

　　For this problem, the after-sales maintenance department of Dongfeng Peugeot is obviously very familiar with it, and even just need to briefly explain the situation on the phone, and the experienced maintenance reception consultant can immediately judge that this is "abnormal noise of the exhaust pipe joint of the 1.6 model".

　　Dongfeng Peugeot 307 car with 1.6-liter engine, the joint between the head section and the middle section of the exhaust pipe is subject to engine vibration. After a period of time, the gasket at the joint is damaged, and the friction between the metal parts of the head section and the middle section of the exhaust pipe will produce a loud noise. When the car is cold, the exhaust pipe temperature is low and the abnormal sound is obvious; After the hot car, the temperature of the exhaust pipe rises, the metal parts expand, the two sections of the exhaust pipe are closely combined, and the abnormal sound disappears.

　　4S shop voice: the solution is to treat the symptoms rather than the root cause;

　　Strictly speaking, there is no radical solution to this problem so far. The 4S shop said: At present, the solution is to replace the worn gasket at the joint between the head section of the exhaust pipe and the middle section of the exhaust pipe. However, this method treats the symptoms rather than the root cause. After the vehicle travels for about 4,000 kilometers, there will still be obvious abnormal noise, so the gasket can only be replaced.

At present, the method of replacing gasket is a temporary solution, not a permanent cure.　

　　Consumer’s voice: Replacing gaskets for free is just a tactic to slow down the war. What should I do after the warranty period?

　　As the abnormal sound of the 1.6-liter 307 exhaust pipe is widespread, many 307 car owners in major online forums are also talking about it. Some car owners who bought their cars earlier have carried out two or three maintenance operations for this problem, but practice has proved that replacing gaskets free of charge is only a delaying tactic and cannot cure the problem. This also leads to a rather sensitive question-what should I do after the warranty period?

　　At present, the warranty period of Dongfeng Peugeot 307 is 2 years or 60,000 kilometers. During the warranty period, car owners who encounter this problem can go to the 4S shop to replace the related spare parts for free. However, since the problem cannot be cured, after the warranty period, how to solve the spare parts and working hours when encountering similar problems? Since the 307 has been on the market for less than two years, and the mileage of most 1.6-liter vehicles does not exceed 60,000 kilometers, there is no reference method to solve such problems after the warranty period.

　　What is the root of "stubborn disease"? Can the root cause be removed? The manufacturer did not make a clear statement:

　　There is a common problem of abnormal exhaust pipe noise in 1.6 models, and the manufacturer has not expressed his position at present. Through the communication with the 4S stores of Dongfeng Peugeot, it has been known that this problem does exist widely. However, the relevant parties related to the after-sales service of 307 cars, including manufacturers and 4S stores, did not disclose this incident for more than one year after the new car went on the market, but told consumers that "this is a common problem" and "there is no effective solution" after the vehicle had problems and consumers took the initiative to drive the problematic car to the door.

　　It is reasonable for the seller to keep quiet beforehand, and consumers will not complain too much about it, but what consumers are most concerned about is how to solve this problem.

　　What is the reason for the abnormal noise of the exhaust pipe of 1.6 model? Whether it is a design defect or the quality of the gasket parts at the exhaust pipe joint is not up to standard, the vehicle manufacturer has not expressed his position. How to deal with it in the future? Can this problem be cured? After the warranty period, do consumers need to bear the burden of repairing at their own expense? Vehicle manufacturers also did not express their views.

　　"Illness" does not constitute a recall condition, and consumers expect a perfect solution.

　　Presumably, manufacturers must know this problem, and more or less attention should be paid to it. The fact that it took more than a year to cure the problem tells us that there is no effective cure for the abnormal sound of the 1.6-liter 307 exhaust pipe at present.

　　The French prototype 307 has been produced and sold for many years, but it has not been heard that the same problem generally exists. In this analysis, it should be that after the domestic sedan 307 lengthens the car body, the middle section of the exhaust pipe that runs through the car body is also lengthened accordingly, which leads to the abnormal noise problem of the exhaust pipe of the 1.6-liter car that was not expected during the design (the structure of the 2.0 car is different, and there is no news of similar situation). As the "leading part" in the incident, it is too early to draw a conclusion whether there is any problem with the quality of the gasket at the joint of the exhaust pipe (after all, it is more than enough time for manufacturers to choose a new supplier who can provide high-quality parts for more than one year).

　　1.6 The abnormal sound "stubborn disease" of the vehicle model did not affect the driving safety of the vehicle and did not constitute the domestic recall conditions for car products, so Dongfeng Peugeot did not recall this incident; Even if the manufacturer intends to recall, there is no effective way to solve this problem at present (it is foreseeable that the number of 307 cars involved in this incident will be very high once recalled).

　　Consumers who don’t care much about the abnormal noise can continue to use it (it won’t affect the driving safety), but after all, quite a few consumers are still reluctant to drive a squeaky car to attract the attention of passers-by (not to mention more than 100 thousand mid-level cars). Before the warranty period, consumers can "tirelessly" go back to the 4S shop to temporarily solve the abnormal sound by replacing parts for free, but after the warranty period? Consumers should never pay for themselves every 5,000 kilometers and go to a maintenance station-unless the 4S shop makes consumers feel confident before selling the car and the two sides reach a tacit understanding, and tells them: "There is a probability that the exhaust pipe of this car will sound abnormally, and how to deal with it after the warranty period is inconclusive." We don’t expect manufacturers to actively expose the shortcomings of their products before selling cars, but manufacturers always have to solve problems that should not appear in products.

　　It’s not a big deal. The key is whether Dongfeng Peugeot can find a thorough solution to the problem-including how to technically solve the abnormal noise problem of the 1.6-liter 307 exhaust pipe (consumers are most afraid to hear: "This car is like this, it can’t be cured, and there is nothing to do." ）； It also includes the problem of how to protect the rights and interests of vehicle owners during the warranty period once it can’t be solved in time technically (consumers are also afraid to hear: "Whether to pay at their own expense is still inconclusive, and we will talk about it after the warranty period." ）。 As for cars, there are always small problems, but the ubiquitous "chronic diseases" manufacturers should really pay attention to them. It is reasonable to say that more than a year is not short, and the voice that should not exist should still make it disappear.

　　The following remarks are from online forums:

　　"The original ball head had a graphite layer, but it would soon be rubbed off, and the remaining wire friction would make abnormal noise. Theoretically, Fukang is the same as the silencer ball head used in 1.6 of 307, at least the same thing is installed on the production line, but abnormal noise appeared on 307, which may require a lot of test runs by manufacturers to completely solve it."

　　"At present, some 4S are trying some new methods, and the effect is OK. Generally, there will be no problem running for 2 or 3,000 kilometers, but in theory, it is also a temporary solution."

　　"Please pay attention to the tx that directly replaces the fixing screw and adopts the method of screwing the fixing screw, which is easy to cause the exhaust pipe to resonate in the speed range of 2600-2800, that is, to make a buzz. 4S experts have already denied this method from practice, ha ha, but it is a kind of high-frequency abnormal sound replaced by another kind of low-frequency abnormal sound, which has not been solved at all … "

　　"Although it has been running for 4000 kilometers after trying a new method in 4S, there is no problem. However, 4S also admits that theoretically, this problem has not been fundamentally solved. "

　　Because of my keen ears, my situation is quite special. It should be the first one in Beijing to replace the ball head according to the East Standard method. Before that, it was also fixed with replacement screws, which was invalid. Because of the heavy responsibility entrusted by 4s to test the East Standard solution, a total of 6 ball heads were replaced before and after, and the shortest one was forced to be replaced after running 500 kilometers, hehe!

　　"Because 4s has almost no imported 1.6 cubs to compare, this important task can only be handed over to the East Standard manufacturers for repeated road tests, alas …"

　　"In September 2005, the car changed the exhaust pipe joint ball head twice. It was not obvious for the first time. It felt as if there was abnormal noise on the left front wheel. After 4s, the exhaust pipe joint ball head was replaced. After 2-3 thousand kilometers, there was obvious abnormal noise, which appeared when the car was cold and the gear was shifted in a low gear. Replace the exhaust pipe joint ball head again (the replaced ball head has been worn out). "